Should I worry about my doctor taking too many x-rays?

On "Phantom Risks" Associated with Diagnostic Ionizing Radiation: Evidence in Support of Revising Radiography Standards and Regulations in Chiropractic   Paul Oakley, DC, MSc, Don Harrison, PhD, DC, MSE, Deed Harrison, DC, Jason Haas, DC


X-ray has been around since 1895, which is the same year that chiropractic was founded. CBP protocols require that the doctor must measure the displacements on spinal radiographs (segmental Subluxation). Both lateral-side view and anterior to posterior (AP) or frontal view CBP x-ray line drawing procedures have been studied and found to be reliable.^32-36Furthermore, CBP utilizes standardized x-ray positioning procedures that have been studied and found to be reliable.³⁶  
As with measures of pain intensity, range of motion, and quality of life, periodic assessment of spinal structural alignment is important to evaluate progress and determine when maximum patient improvement has been reached. In CBP Technique, the use of initial and follow-up spinal x-rays or radiographs is deemed necessary; however, some in chiropractic have condemned the use of follow-radiographs to collect alignment data.^37-39 Importantly, there is data to show that the use of medical/chiropractic x-rays constitutes a very minor health risk and in fact has been shown to be of benefit (decreased sickness and cancer mortality rates) in some studies.^40-42